Vertical Member is a hollow Aluminium pipe of 70 mm OD and 62 mm ID. Horizontal Member is an aluminium rectangular section of 32 mm width and 57 mm depth and 3 mm thickness.
The inclined members are 2.5 mm thick of 30 x 30 mm square section.
Brace – lock system for holding cross bracing in place. Distance between the verticals is 1.2 m. Distance between the horizontals is 600 mm.
These frames could be 1.8 m or 2.4 m height at present. (Later, any required heights can be added to the stock).